Method and apparatus for setting a prefabricated building section

ABSTRACT

A method and apparatus for erecting a home or building from prefabricated building sections wherein a prefabricated house or building section is transported on a carrier over a highway to a building site alongside a foundation, and removing the prefabricated building section from the transporting carrier and setting it onto the permanent foundation by means of a pair of substantially vertically positionable A-frame hoists rollable on parallel tracks made from portable interfitting sections which extend from along the ends of the carrier to along and closely adjacent the ends of the foundation. Each of these A-frame hoists have means for engaging opposite ends of the house or building section and lifting it from the carrier, moving it along the tracks to the foundation and setting it down thereon. The house section engaging means of one of the A-frames is freely suspended from the apex thereof by a hoist means, and the engaging means of the other A-frame is vertically movable along a vertical bar suspended from the apex of its A-frame, the lower end of which bar is guided, restricted, and transversely movable in its pendular movement relative to the A-frame.

United States Patent Scholz 5] July 25, 1972 [54] METHOD AND APPARATUSFOR Primary Examiner-Othell M. Simpson SETTING A PREFABRICATEDAttorney-Hugh Adam Kirk BUILDING SECTION [57] ABSTRACT [72] Inventor:Donald T. Scholz, Toledo, Ohio A method and apparatus for erecting ahome or building from prefabricated building sections wherein aprefabricated house [73] Asslgnee' Scholz Homes Toledo Ohm or buildingsection is transported on a carrier over a highway [22] Filed: April 14,1970 to a building site alongside a foundation, and removing theprefabricated building section from the transporting carrier Appl 28415and setting it onto the permanent foundation by means of a pair ofsubstantially vertically positionable A-frame hoists rollable onparallel tracks made from portable interfitting sec- [52] US. Cl...254/89 R, 52/79, 52/ 1 27, tions which extend from along the ends fthe carrier to along I 51] Int Cl B62?! and closely adjacent the ends ofthe foundation. Each of these A f e hoists h means f engaging oppositeends of the Field of Search ft/31 39 5 4/ 89 R, 2 R, 2 13, house orbuilding section and lifting it from the carrier, mov- 4 52/79 747 ingit along the tracks to the foundation and setting it down thereon. Thehouse section engaging means of one of the A- [56] References Citedframes is freely suspended from the apex thereof by a hoist means, andthe engaging means of the other A-frame is verti- UNITED STATES PATENTScally movable along a vertical bar suspended from the apex of itsA-frame the lower end of which bar is guided restricted 3,l95,859 7/l965 Jackson et al... ..254/2 R I 3,271,006 9/1966 Brown et aL "254, Raknilitxrzijglegsely movable in its pendular movement relative to3,370,725 2/1968 Jones ..254/2 R V 16 Claims, 14 Drawing FiguresPATENTEBJUL 25 me SHEET 1 OF 4 INVENTOR.

DONALD T. SQHQLZ ATTORNEY PEYENFEfiJUiZfi m: 33,679,177

sum 2 or a INVENTOR. DONALD T. SCHOLZ ATTORNEY mama. 79,177

sum 3 6F INVENTOR. I30 DONALD T. SCHOLZ IGJ: BY

ATTORNEY SHEET Q 0F 4 250 282 y INVENTOR.

28o DONALD T. SCHOLZ 26O BY FIGJO ATTORNEY METHOD AND APPARATUS FORSE'I'I'ING A PREFABRICATED BUILDING SECTION BACKGROUND OF THE INVENTIONGenerally, prefabricated house sections which have been nailed, gluedand completely fitted at a remotely located factory are transported asextra large and wide loads over a highway on special flat trailers andtractors to a building site upon which they are to be finally located.Previously it was necessary to bring a large, bulky and expensive craneand/r carriage to the building site to lift these sections from thetrailer and place them in position on a foundation.

Thus, it is the purpose of this invention to eliminate this expensivecrane and replace it with a pair of simple A-frame hoists which aremovable, adjustable, manually operable and transportable in or trailablebehind a standard truck so that no expensive and bulky equipment isrequired to set a prefabricated house section on a foundation.

SUMMARY OF THE INVENTION Generally speaking, this invention comprises asimple tiltable type A-frame hoist and a more rigid type A-frame hoist,which A-frame hoists roll along two substantially parallel railscomposed of portable interfitting track sections. These rails extendfrom along the ends of the house section on its trailer to along theends of the foundation upon which it is to be placed. The more rigidA-frame hoist maintains a fixed but adjustable angle with the verticalend of the house section to prevent collapse of the A-frames and thehouse section during their transport. The simple A-frame hoist may betaller and wider than the more rigid A-frame hoist and only suspends theother end of the house section from its apex. Thus the two A- frameswhen attached to the house section form a dynamic four bar linkagestructure, with one angle being fixed so that the assembly will notcollapse.

The plurality of track sections are similar and interfitting, havingcylindrical wheel bearing top surfaces such as on tubular rails, meansto lock the sections together, and foot plates to prevent the rails orsections from sinking into soft ground. These sections are manuallyportable and may be quickly and easily set up across the ends of a flatbed trailer which carries a house section and extend therefrom along theends of the foundation where the section is to be placed. Usually thetrailer is driven alongside the foundation so that the house sectiononly needs to be moved a few feet more than the width of the sectionfrom the trailer over on to the foundation.

Both of the A-frames are provided with one pair of wheels at the ends oftheir legs, which wheels have concave grooves therein like pulleys forfitting over the tubular tracks so as to allow tilting of the A-framesabout the longitudinal axes of the rails regardless of any variations inthe distance, levels, and slopes of the terrain between the tracks.Connected to one of these pulley or track wheels on each A-frame is adriving mechanism which may comprise a set of gears, sprockets, and aratcheted crank so that the A-frames may be moved along the tracksmanually by operating the cranks. Each of the frames also is providedwith a pair of transport wheels projecting from the side of the A-frame,such as of the rubber tired trailer type, so that the frame may bereadily pushed over the ground or pulled behind a vehicle wheelbarrowfashion. These transport wheels preferably are cushion mounted on atleast the rigid A-frame. In the legs of the A-frame there also areprovided, near the base, a pair of sockets into which transverse barsmay be inserted for use as levers in propping and/or setting up theA-frame when it is to be used. Each of the A- frames at its apex isprovided with a swivel connection for suspending a lifting means for thehouse sections, which lifting means comprises a house section engagingmeans or frame having a hook portion which engages under the end of thehouse section and an abutment portion which presses against the end ofthe house section near its top so that the house engaging means arerigidly attached to the ends of the house section and will not moverelative thereto. If desired, the upper LII end of the abutment portionof each house engaging means may be provided with tines to preventslipping once the house section is engaged.

The simple A-frarne may have just a plain chain and tackle type hoistsuspended from its pivot at its apex which hoist is connected to thehouse section engaging means, and the cross member near the base of thelegs of the A-frame may be pivoted at its center as may the legs attheir top, so that this simple A-frame may be collapsible if desired foreasy transportation. This A-frame, because it is collapsible, may alsobe made larger and longer than the other A-frame. This simple A- framewhich supports one end of the house section, thus freely seeks itsproper angle once it is engaged with the house section.

The other A-frame is provided with a more rigid hoist mechanism so thatthe house engaging means thereof is maintained at a fixed but manuallyadjustable angle with the vertical center line of this A-frame. In thismanner the whole section is stably supported and will not collapse eventhough the A-frames are free to rock around their grooved rollers ontheir tubular tracks at each end of the house section because thisassembly forms a four bar linkage with one fixed angle. Instead ofconnecting a chain hoist to the apex of this A-fi'ame (as in the case ofthe simple A-frame), there is suspended a bar, the lower end of which isprovided with a yoke which contains rollers that engage opposite sidesof the cross bar which extends between the bottom of the legs of theA-frame. This yoke of rollers has sufficient tolerance to permit as wellas limit the swivelling of the bar about the vertical center line of theA- frame to about ten degrees. However, at the bottom of the bar andabove this yoke there is provided means for moving this end of the bartransverse to the vertical center line of the A- frame, which may bedone by a crank and screw mechanism embodied therein. The house sectionengaging and lifting means is guided vertically by rollers up and downthis suspended bar and may be ratcheted up and down by means of a chainconnected to the upper end of this suspended bar.

BRIEF DESCRIPTION OF THE VIEWS The above mentioned and other features,objects and advantages and the manner of attaining them are describedmore specifically below by reference to an embodiment of this inventionshown in the accompanying drawings, wherein:

FIG. 1 is a perspective view of two house sections raised just above aflat bed trailer by a pair of A-frames according to this invention whichengage opposite ends of a section for moving this section along a pairof parallel tracks to set it over a foundation adjacent the other housesection;

FIG. 2 is a schematic diagram of a side elevation of a house sectionshowing the four pivot points of the system of a four bar linkage with afixed angle a which the assembly forms when supported by the one rigidand one simple A-frames of this invention;

FIGS. 20, 2b, 2c and 2d are schematic diagrams of a house section beingsupported by the A-frames of this invention to show the versatility ofthese frames relative to the two tracks shown in FIG. 1; FIGS. 2a and 2bbeing plan views with a section normally transverse and at an angle tothe two parallel tracks, respectively; FIG. 20 being an end view of ahouse section which is maintained upright regardless of the incline of atrack; and FIG. 2d being a side view showing how the house section maybe maintained in a horizontal position when one track is higher than theother;

FIG. 3 is an enlarged side elevation of one embodiment of theinterfitting ends of two adjacent track sections and the latching meansfor holding them together;

FIG. 4 is a section taken along line 4-4 of FIG. 3;

FIG. 5 is an enlarged detailed side elevational view of an embodiment ofthe simple and collapsible A-frame shown at the left of the housesection in FIG. 1;

FIG. 6 is a slightly smaller end view of the simple A-frame looking inthe direction of arrow X in FIG. 5 showing the crank mechanism fordriving one of its wheels along the track, and part of a prop barassociated therewith;

FIG. 7 is a side elevation of the house engaging means of the simpleA-frame taken along lines 7 7 of FIG. shown in engagement with an end ofa house section most of which section and A-frame have been broken away;

FIG. 8 is an enlarged side elevational view of the rigid or otherA-frame shown at the right end of the house section in FIG. 1;

FIG. 9 is a vertical sectional view taken along line 9 9 of FIG. 8showing the suspending bar and house section engaging means guidedtherein with the house engaging means in engagement with an end of abroken away house section; and

FIG. 10 is a horizontal section taken along line 10 10 of FIG. 8 showingthe house engaging means around the cross sectioned suspending bar.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENT I THE METHOD Referringfirst to FIG. 1 there is shown a flat bed trailer T upon which a firsthouse section H 1 has been transported to a site along the side of analready poured foundation F upon which another house section H 2 hasalready been installed. This foundation F has border strips B along itsedges with notches N therein through which the hook portions of thehouse section engaging means fit and may be removed after the housesection has been positioned and bolted in place such as through boardsor base plates P. These notches N are then filled in and the housesections are anchored to the foundation F. The basement in thefoundation F may also be provided with a center column C for supportingthe center portion of the long house sections H l and H 2.

Between the ends of the trailer T and foundation F are a pair ofparallel tubular tracks or rails R l and R 2 made up of interfittingsections 20. Along these rails R 1 and R 2, the two A-frame hoists 100and 200 of this invention are moved.

At the far end of the house section H 1 there is shown the simplecollapsible A-frame hoist section 100 for lifting that end of the housesection from the trailer T by means of a chain hoist described later inSection III, and at the right end of the house section H 2 is the othermore rigid A-frame hoist 200 for lifting the other end of the housesection from the trailer T and holding this other end at a fixed anglewith respect to the vertical center line of this A-frame so as tostabilize the system. This more rigid A-frame will be described later inSection IV.

Once the house section H 2 is removed from the trailer T as shown inFIG. I, a tongue (not shown) may be reinstalled on one end of thetrailer T, such as by bolts, the end rail sections of the track R 2removed, and a tractor connected thereto to draw the trailer T away andmake room for the next house section.

FIG. 2 is a schematic side elevation of the house section settingmechanism of this invention showing the four pivot points p 1, p 2, p 3and p 4 at the feet and the apeces of the A- frames 100 and 200,respectively, form a stable four bar linkage 112 12, 100 and 200 whenthe angle is fixed by the rigid A-frame 200 to produce at any instanttwo effective triangular frames having a common side d 1 between the twopivot points p 2 and p 3.

FIGS. 2a, 2b, 2c and 2d show schematically how the universal verticallypivoted connections at the apeces of the A- frames 100 and 200 for thehoists enable a housing section H to be suspended therebetween on therails R l and R 2 and permitted to cant during relative movementsbetween the A- frames I00 and 200 along the tracks R 1 and R 2.

In FIG. 2b the house section H is canted relative to the two paralleltracks R l and R 2 such as when one A-frame is moved faster or fartherthan the other, as distinguished from the A-frames I00 and 200 beingmoved at the same speed along the rails R l and R 2 as shown in FIG. 2a.

In FIG. 20 the house section H is held upright by the pivotalconnections of the A-frames when the tracks R 1 and/or R 2 are inclined.

In FIG. 2d when one track R 2 is lower than the other track R l thehouse section H may be held in a horizontal plane by adjusting thehoists of the A-frames 100 and 200 relative to each other.

Thus the versatility of the apparatus of this invention and its methodof use are equal to that of a large and expensive crane. In fact, bymaking the A-frames 100 and 200 larger or longer, as shown for the frame100 in FIG. 2d, a whole house section H may be raised high enough to beplaced as a second floor for a home or an apartment, and if desired,even higher if more floors are needed.

II THE TRACK As shown in FIG. 1 the tracks R 1 and R 2 comprise aplurality of track sections 20. These track sections 20 havecomplementary ends which interfit with each other as shown in enlargeddetail in FIG. 3, with parts thereof broken away. A projecting pin orpeg 24 is welded in one end of each tubular rail 22 of each tracksection 20 and is inserted into the hollow tubular section of the otherend of an adjacent tubular rail 22 for alignment of track section 20.These tubular rails 22 may be welded onto a vertical web or leg portion26 of an inverted T- cross section having a flat base portion 28.

At each end of each track section 20 a large pad or plate 30 is attachedto the bottom of the base portion 28 to act as a foot to prevent thesection from sinking into the soft ground a newly excavated foundation Fwhen the weight of a house section H is placed thereon as shown inFIG. 1. These track sections 20 are preferably made of lengths of abouteight or ten feet so they can readily be lifted and moved by not morethan two men. Additional pads 30 may be provided and welded to thebottom of base portion 28, if desired.

Also between the end sections there are provided locking levers 32pivoted to one web section 26 at 34 and provided with hooks 36 at theirother ends which engage pins 38 fastened in the other end of the websection 26 of the adjacent track as shown in FIG. 3. Therefore, once thesections are fitted together they are locked so they will not pullapart, thus preventing the A-frames from becoming derailed as they aremoved along the tracks R l and R 2.

There is also shown connected or connectable to one of the tracksections 20 a stop means 40 as shown in FIG. I, which is used forengagement of one of the transport or rubber tired wheels 240 or 242 onthe A-frames and 200. This stop means 40 positions the A-frames 100 and200 relative to the tracks R 1 and R 2 so that when the A-frames aretilted to a vertical position their respective pulley type track wheelsI22, 124, 222, 224 will directly engage the tubular rail portions 22 ofthe track section 20. The Aframes may be tilted into a vertical positionby means of the lever action of the lift or prop bars 230 and 232 suchas shown in FIGS. 6 and 1, respectively.

III THE SIMPLE A-FRAME Referring now to FIGS. 5, 6 and 7, there is showna simple collapsible A-frame 100 illustrated at the left end of thehouse section H 1 in FIG. 1 which comprises a pair of legs 102 and 104,one of which may be pivoted at 106 at its top to an apex cross member108.

The bottom ends of the legs 102 and 104 may be connected together by apair of tension members or bars 112 and 114, pivoted to each leg andpivoted together at 116. A sleeve 118 may be provided to slide over thepivoted connection 116 to prevent the members 112 and 114 from bucklingwhen the A- frame 100 is in use. At the lower end of each leg 102 and104 there is provided a circumferentially grooved pulley type rail wheel122 and 124 mounted on shafts 126 and 128 journalled in bearings at theends of the legs 102 and 104, respectively. One of these pulley trackwheels 122 is keyed to its shaft 126, and on one end of this shaft ismounted a sprocket wheel 130 connected by a sprocket chain 132 tosmaller sprocket wheel 133 keyed to another shaft 134 journalled abovethe end of the leg. This smaller wheel 133 may be keyed to a largersprocket wheel 136 which in turn is connected by a sprocket chain 138 toa second smaller sprocket wheel 140 mounted on another shaft 141connected to a crank 142 and a ratchet wheel and dog mechanism 143 toprevent the frame and its houses section H from coasting when on aninclined rail section such as shown in FIG. 20. Thus this manuallyoperated crank 142 through the speed reduction sprocket wheels andsprocket chains enables the A-frame 100 to be moved easily along itstrack R 1 by positively rotating the pulley wheel 122 which frictionallyengages the track R 1. Both of the A-frames 100 and 200 are providedwith such cranks and wheels (see also FIG. 8 and pulley wheel 224 onA-frame 200).

Suspended from the top of the simple A-frame at the center of the member108 is a swivel joint or shackle 110 to which is attached a chain hoist150 having a chain 151 which is connected to the rear projecting side ofthe house section lifting means 160 (see FIG. 7) at the center of across member 152 (See FIG. 5). This cross member 152 is spaced outwardlyaway from the flat house section engaging'side of the lifting means 160,which side may comprise a rectangular frame having a pair of verticalbars 164 with an outwardly projecting channel, cradle, or hook portion166 across its lower end. This hook portion 166 engages the under sideof a cross girder or base plate P at the end of the house section, andfits into the notch N (see FIG. I) so that it may be easily removedafter the house section H has been set in position upon the foundationF. The upper or other end of the frame or bars 164 of the lifting means160 is provided with a cross bar or member 168 which abuts against theouter surface of the end of the house section H as shown in FIGS. 1 and7. The abutting surface of the bar 164 may be provided with a pluralityof teeth, tines, or projections 170 to prevent slipping of the liftingmember 160 relative to the house section H once the cradle 166 has beenengaged with the lower cross girder P of the house section H. As soon asthe lifting of the house section H begins, the upper end or cross member168 of the frame or lifting means 160 is forced against the end wall ofthe house section H by its pivotal movement around the outwardly spacedlifting member 152 to imbed the tines 170 into the end of the housesection H and hold the lifting means 160 in position. The marks lefi bythese tines 170 on the end of the house section H are covered thereafterby the finish siding.

Thus the chain hoist 150 raises and lowers its end of the house sectionH on the simple A-frame, and permits it to pivot as shown in FIGS. 2a,2b, and 2d and be moved along the rail R 1 on the wheels 122 and 124.Since the lifting means 260 on the rigid type A-frame 200 (to bedescribed in section IV) maintains the end of the house section H at afixed angle with the vertical center line of this A-frame 200, theswivel suspension 110 of hoist 150 for this A-frame 100 permits it totilt as the distance of the rail R 1 from the end of the house section Hmay vary.

Also, this simple A-frame hoist can be and usually is made larger, thatis, with longer and wider spreading legs 102 and 104 than the rigidlyconnected legs 202 and 204 of the more rigid A-frame hoist described inthe next section, since this simple A-frame hoist 100 may be collapsedwhile the more rigid one 200 cannot and its size may be limited to thewidth of the road along which it has to be transported or drawn.

IV THE RIGID A-FRAME Referring now to FIGS. 8, 9, and there isillustrated in detail the other or rigid supporting A-frame 200 which isshown at the right end of the house section H 1 in FIG. 1. This A-frame200 is usually not as large as the A-frarne 100 since its lifting means260 is not freely suspended as is the lifting means 160 of the A-frame100. Because of the restrained movement of the lifting means 260 theA-frame 200 preferably is not collapsible. Accordingly, its two legs 202and 204 are bolted or welded to its apex cross member 206 and to itsbottom tie rigid cross member 208. However, the lifting means 260 ispivotally connected by a swivel or shackle type connection 210 suspendedfrom the center of the apex cross member 206.

At the ends of the legs 202 and 204 there are provided pulley type trackwheels 222 and 224, one of which may be driven by a mechanism similar tothat previously described and shown in FIGS. 6 and 7 for the A-frameI00.

Referring specifically to FIGS. 8 and 9, there is suspended from theswivel shackle 210 a vertical bar member 250, the lower end of which isprovided with a yoke 251 which is attached to a transversely movableslide mechanism 252.

The slide mechanism 252 is connected to a yoke 256 which straddles thelower A-frame tie cross bar 208. This yoke 256 has a pair of verticalrollers 258 which roll along opposite sides of the cross bar 208 so thatthe lower end of the suspended bar 250 may seek a vertical positionwithin the plane of the A-frame, if and when the rail R 2 or tracksection or sections 20 upon which it rests are not horizontal (see FIG.2c).

The slide mechanism 252 may be operated by a screw crank 254 to move theyoke 251 and the bottom end of the bar 250 transversely of the A-frame,so that the bottom end of the bar 250 moves toward and away from thehouse section H. This adjustable movement of the bar 250 compensates forvariations in the spacing of the rail R 2 from the end of the housesection H when it is removed from the flat bed trailer T and wheninstalled on the foundation F as shown in FIG. 1. Thus positivehorizontal adjustment by means of the crank 254 at the lower end of thispendular bar 250, enables the vertical center line of the A-frame 200and its house lifting means 260 always to be at a fixed angle to its endof the house section H including during the movement of the liftingmeans 260 up and down on the vertical bar 250. The swivel shackle 210and the spacings of the rollers 258 on the yoke 256 also permit the bar250 to twist slightly around its vertical axis at least about tendegrees in each direction to permit twisting of the house section H asshown in FIG. 2b above when one A-frame is moved at a different ratethan the other.

Vertically slidable on the bar 250 is the rigid house section liftingmeans or frame 260 which has a hook or cradle engaging portion 266 andan upper end engaging member 268 with tines 270, all of which aresimilar to the corresponding elements of the frame 160 shown in FIGS. 5and 7. Besides this house section lifting means being provided with apair of parallel upright members 264, it also contains an additionalframe means 280 (see FIGS. 9 and 10) which straddles the dependingvertical bar 250. This frame 280 is provided with upper and lower pairsof rollers 282 which frictionally engage and guide this lifting means260 and its frame 280 up and down on opposite sides of the bar 250. Thislifting means 260 and its flame 280 may be ratcheted up and down by alever 284 which operates a ratchet mechanism 286 that engages the chain288 which is attached to top beam 290 at the upper end of the bar 250.Thus movement of this house lifting means 260 is restrained relative tothe A-frame 200 so that its position will always be at the same angle tothe vertical axis of the A- frame to form a stable four bar linkagesystem thereby preventing any collapse of the A-frames and 200 of thisinvention once they are both engaged with a house section H.

Referring now to FIGS. 5, 6 and 8, each of the A-frames 100 and 200 isprovided with transporting wheels 240 and 242 mounted on brackets 244and 246, respectively, which brackets are sufficiently long to space thedriving and lifting means of each frame from the ground so they will notdrag when the A-frames are in a substantially horizontally towingposition. These brackets 244 and 246, and particularly those on the morerigid A-frame 200 are preferably cushioned to reduce the road vibrationstransmitted to the house section engaging means connected to theseA-frames. These rubber tired wheels 240 and 242 thus enable these twoframes I00 and 200 to be towed behind a truck over any highway.

Also there is shown above these wheels inside the legs, sockets 226 and228 through which propping bars 230 and 232 may be inserted for manuallyuprighting or tilting the A- frames 100 or 200 into position when theirtransporting wheels 240 and 242 engage the stop 40 on the tracks asshown in FIG. 1.

The A-frames 100 and 200 of this invention may preferably be made of alight weight-material such as aluminum, and thus increase materiallytheir case of mobility by manual means in spite of the fact that thehouse sections l-l themselves may weight several tons. Accordingly thesehouse setting A-frames may be easily manipulated by a relatively smallcomponent of men, and often only two men for each A-frame can completelyinstall a house section.

While there is described above the observed principles of this inventionin connection with specific apparatus, it is to be clearly understoodthere may be many unobserved side effects which contribute substantiallyto the efficiency of this device and that this description is made onlyby way of example and not as a limitation to the scope of thisinvention.

1 claim:

1. A house section setter comprising:

A. a plurality of portable interfitting track sections forming a pair ofsubstantially parallel tracks on opposite sides of a foundation for ahouse section, B. a pair of portable vertical hoist frames for oppositeends of said house section, each frame having: 1. wheels for engagementwith one of said tracks, 2. a section engaging lifting means swivelablysuspended from the top of its frame, and 3. means for moving saidlifting means substantially vertically with respect to the top of itsframe, 4. one of said frames also having a. a vertical bar meansdepending from the top of said frame for longitudinally guiding saidlifting means, and b. means on said bar means for restricting thependular movement of said bar means relative to its said frame formaintaining a fixed angle between the vertical center line of said frameand said lifting means.

2. A house setter according to claim 1 wherein said track sections havecircular top cross sections.

3. A house setter according to claim 1 wherein said track sectionscomprise lever and hook means for locking the sections together.

4. A house setter according to claim 1 wherein said track sectionsinclude pin and socket interfitting means between their ends.

5. A house setter according to claim 1 wherein said track sections areprovided with foot pads to prevent them from sinking into the softearth.

6. A house setter according to claim 1 wherein said hoist frames have anA-shaped configuration with an apex and a cross bar.

7. A house setter according to claim 6 wherein the other of said hoistframes has its legs pivoted at its apex and its cross bar iscollapsible.

8. A house setter according to claim 1 wherein each of said hoist framesis provided with a pair of wheelbarrow type wheels projecting in thesame direction from the plane of each frame for portability of saidframes.

9. A house setter according to claim 8 wherein one of said tracksections is provided with a stop means for engagement with one of saidwheelbarrow wheels for aligning said wheels on said frame with saidtrack.

10. A house setter according to claim 1 wherein each of said hoistframes are provided with sockets for bars to aid in moving said framesfrom horizontal into vertical positions.

1 1. A house setter according to claim 1 wherein each of said liftingmeans is provided with a bottom hook portion for engagement under theend of a house section and a upper portion for engaging that end of saidhouse section. I

12. A house setter according to claim 1 1 wherein said upper portion ofsaid house lifting means is provided with tines to prevent slipping ofthe lifting means relative to said house section once it has beenengaged therewith.

13. A house setter according to claim 1 wherein one of said hoist framescomprises a chain and tackle hoist anchored between the top of saidhoist frame and said lifting means.

14. A house setter according to claim 1 wherein said lifting means forsaid one frame includes a pair of rollers engageable with said dependingvertical bar means for guiding its movement along said bar means.

15. A house setter according to claim 1 wherein the means on said barmeans for restricting the pendular movement of said bar means comprisesa screw and crank means for relatively moving the lower end of said barmeans with respect to the lower end of said hoist frame.

16. A house setter according to claim 1 including a crank and gearmechanism mounted on each said hoist frame for driving one of saidwheels for moving said hoist frames along said track.

P0-1050 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION 1 P t NO3, 679, 177 D d July 25, 1972 Inventor(s) Donald CHOLZ It is certifiedthat error appears in the aboveidentified patent and that said LettersPatent are hereby corrected as shown below:

FColumn 2, line 16, after "house" insert section 1 Column 3, line 6 1,"112" should read i 1 "12" should read i 2.

Column 4, line 30, after "ground" insert around Signed and sealed this9th day of January 1973..

(SEAL) Attest:

EDWARD M.l"lJETCI'IER,JR. ROBERT GOTTSCHALK Attesting OfficerCommissioner of Patents

1. A house section setter comprIsing: A. a plurality of portable interfitting track sections forming a pair of substantially parallel tracks on opposite sides of a foundation for a house section, B. a pair of portable vertical hoist frames for opposite ends of said house section, each frame having:
 1. wheels for engagement with one of said tracks,
 2. a section engaging lifting means swivelably suspended from the top of its frame, and
 3. means for moving said lifting means substantially vertically with respect to the top of its frame,
 4. one of said frames also having a. a vertical bar means depending from the top of said frame for longitudinally guiding said lifting means, and b. means on said bar means for restricting the pendular movement of said bar means relative to its said frame for maintaining a fixed angle between the vertical center line of said frame and said lifting means.
 2. a section engaging lifting means swivelably suspended from the top of its frame, and
 2. A house setter according to claim 1 wherein said track sections have circular top cross sections.
 3. A house setter according to claim 1 wherein said track sections comprise lever and hook means for locking the sections together.
 3. means for moving said lifting means substantially vertically with respect to the top of its frame,
 4. one of said frames also having a. a vertical bar means depending from the top of said frame for longitudinally guiding said lifting means, and b. means on said bar means for restricting the pendular movement of said bar means relative to its said frame for maintaining a fixed angle between the vertical center line of said frame and said lifting means.
 4. A house setter according to claim 1 wherein said track sections include pin and socket interfitting means between their ends.
 5. A house setter according to claim 1 wherein said track sections are provided with foot pads to prevent them from sinking into the soft earth.
 6. A house setter according to claim 1 wherein said hoist frames have an A-shaped configuration with an apex and a cross bar.
 7. A house setter according to claim 6 wherein the other of said hoist frames has its legs pivoted at its apex and its cross bar is collapsible.
 8. A house setter according to claim 1 wherein each of said hoist frames is provided with a pair of wheelbarrow type wheels projecting in the same direction from the plane of each frame for portability of said frames.
 9. A house setter according to claim 8 wherein one of said track sections is provided with a stop means for engagement with one of said wheelbarrow wheels for aligning said wheels on said frame with said track.
 10. A house setter according to claim 1 wherein each of said hoist frames are provided with sockets for bars to aid in moving said frames from horizontal into vertical positions.
 11. A house setter according to claim 1 wherein each of said lifting means is provided with a bottom hook portion for engagement under the end of a house section and a upper portion for engaging that end of said house section.
 12. A house setter according to claim 11 wherein said upper portion of said house lifting means is provided with tines to prevent slipping of the lifting means relative to said house section once it has been engaged therewith.
 13. A house setter according to claim 1 wherein one of said hoist frames comprises a chain and tackle hoist anchored between the top of said hoist frame and said lifting means.
 14. A house setter according to claim 1 wherein said lifting means for said one frame includes a pair of rollers engageable with said depending vertical bar means for guiding its movement along said bar means.
 15. A house setter according to claim 1 wherein the means on said bar means for restricting the pendular movement of said bar means comprises a screw and crank means for relatively moving the lower end of said bar means with respect to the lower end of said hoist frame.
 16. A house setter according to claim 1 including a crank and gear mechanism mounted on each said hoist frame for driving one of said wheels for moving said hoist frames along said track. 